ADC-304 Datel, Inc., ADC-304 Datasheet

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ADC-304

Manufacturer Part Number
ADC-304
Description
8-Bit, 20 MHz, low-power flash A/D converter
Manufacturer
Datel, Inc.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADC-304
Manufacturer:
DATEL
Quantity:
20 000
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.)
FEATURES
GENERAL DESCRIPTION
Datel’s ADC-304 is an 8-bit, 20MHz analog-to-digital flash
converter. The ADC-304 offers many performance features not
obtainable from other flash A/D’s.
Key reatures include a low power dissipation of 375mW and
TTL-compatible outputs. A wide analog input bandwidth of
8MHz (–3dB) allows operation without the need of a sample-
hold. Also, single +5V supply operation is obtainable with an
input range of +3 to +5V, eliminating the need for an additional
power supply. A 0 to –2V input range is available with ±5V
supply operation.
Another novel feature of the ADC-304 is its user-selectable
output coding. The MINV and LINV pins allow selection of
binary, complementary binary, and if external offset circuitry is
used for bipolar inputs, offset binary, two’s complement and
complementary two’s complement coding.
The ADC-304 is supplied in a 28-pin plastic DIP or a 28-pin
plastic SOP package. Operating temperature range is –20 to
+75°C. Storage temperature range is –55 to +150°C.
V
V
8-bit resolution
20MHz conversion rate
±1/2LSB maximum nonlinearity
8MHz input bandwidth
Low power consumption, 375mW
TTL compatible
Single or dual supply operation
T
B
SENSE
SENSE
ANALOG
ANALOG
®
CLOCK
INPUT
INPUT
INPUT
MINV
IN N O VA T IO N a n d E X C E L L E N C E
V
V
V
T
M
B
R/2
R/2
R/2
R
R
Figure 1. ADC-304 Functional Block Diagram
R
R
COMPARATOR
128
129
256
1
2
3
LATCH
THESE PINS ARE AVAILABLE ON SOP PACKAGE ONLY
6
6
6
6
®
7
1
Tel: (508) 339-3000 Fax: (508) 339-6356
LINV
BIT 8 (LSB)
BIT 7
BIT 6
BIT 5
OVERRANGE
BIT 4
BIT 3
BIT 2
BIT 1 (MSB)
8-Bit, 20MHz, Low-Power
PIN
PIN
10
11
12
13
14
10
11
12
13
14
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
INPUT/OUTPUT CONNECTIONS
INPUT/OUTPUT CONNECTIONS
Flash A/D Converters
FUNCTION
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
DIGITAL GND
+5V POWER
–5.2V POWER
–5.2V POWER
–5.2V POWER
+5V POWER
DIGITAL GND
LINV
BIT 5
BIT 6
FUNCTION
ANALOG INPUT
V
ANALOG GND
V
V
NO CONNECT
MINV
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
DIGITAL GND
+5V POWER
–5.2V POWER
PLASTIC SOP PACKAGE
B
B
M
PLASTIC DIP PACKAGE
SENSE
For immediate assistance (800) 233-2765
ADC-304
PIN
PIN
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
FUNCTION
ANALOG INPUT
V
ANALOG GND
V
CLOCK INPUT
BIT 8 (LSB)
BIT 7
BIT 6
BIT 5
LINV
DIGITAL GND
+5V POWER
OVERRANGE
–5.2V POWER
FUNCTION
MINV
V
V
ANALOG GND
NO CONNECT
ANALOG INPUT
NO CONNECT
ANALOG INPUT
NO CONNECT
ANALOG GND
V
CLOCK INPUT
BIT 8 (LSB)
BIT 7
M
B
T
T
T
SENSE

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ADC-304 Summary of contents

Page 1

... The ADC-304 is supplied in a 28-pin plastic DIP or a 28-pin plastic SOP package. Operating temperature range is –20 to +75°C. Storage temperature range is –55 to +150°C. ...

Page 2

... M Input Voltage (Digital) Digital Inputs –0 FUNCTIONAL SPECIFICATIONS Unless otherwise noted, the following specifications apply to the ADC-304 when used either with a single or dual power source. The test conditions are: For single power supply operation: For dual power supply operation +5V, DIG GND = 0V ...

Page 3

... Figure 2 for this purpose Separate the clock input, CLOCK, from other leads as much as possible, observing proper EMI and RFI wiring techniques. This reduces the inductive pick-up of this lead from interfering with the “clean” operation of the ADC-304. ADC-304 +5V ANA GND 0.01µF ...

Page 4

... ADC-304 Table 1. Output Coding for +5V Power Supply Operation (+3 to +5V Signal Input) Unipolar MINV Scale LINV +FS – 1SLB +4.9922V +7/8FS +4.7500V +3/4FS +4.5000V +1/2FS +4.0000V +1/4FS +3.5000V +1/8FS +3.2500V +1LSB +3.0078V Zero +3.0000V Table 2. Output Coding for ±5V Power Supply Operation (0 to –2V Signal Input) ...

Page 5

... E D DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 1-34-60-01-01 DATEL GmbH Munchen, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025 ADC-304 ADC-304 28-Pin DIP (Plastic) 0.600 (15.24) 0.011 ±0.003 (0.28 ±0.08) ADC-304-3 28-Pin SOP (Plastic) 0 ...

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